APA Style

Barrett, Tom, Barrett, Jim. (2018). Ultimate Aptitude Tests : Over 1000 Practice Questions for Abstract Visual, Numerical, Verbal, Physical, Spatial and Systems Tests (Edisi ke- 4). London: Kogan Page.

Chicago Style

Barrett, Tom, Barrett, Jim. Ultimate Aptitude Tests : Over 1000 Practice Questions for Abstract Visual, Numerical, Verbal, Physical, Spatial and Systems Tests. Edisi ke- 4 London: Kogan Page, 2018. Text.

MLA Style

Barrett, Tom, Barrett, Jim. Ultimate Aptitude Tests : Over 1000 Practice Questions for Abstract Visual, Numerical, Verbal, Physical, Spatial and Systems Tests. Edisi ke- 4 London: Kogan Page, 2018. Text.

Turabian Style

Barrett, Tom, Barrett, Jim. Ultimate Aptitude Tests : Over 1000 Practice Questions for Abstract Visual, Numerical, Verbal, Physical, Spatial and Systems Tests. Edisi ke- 4 London: Kogan Page, 2018. Print.